The Nacho Posted February 4, 2005 Share Posted February 4, 2005 Ok, I have a question...if you could stop time, or if time stopped, would gravity stop, too? Because in movies, (I'm not saying movies are always right ) whenever time stops, water and stuff freezes in midair, but the people can jump through it and land on the ground. (Of course, it might be that gravity is always there, but it doesn't...act on you...if...time is...stopped? I don't know. What do you think? Link to comment Share on other sites More sharing options...
ydoaPs Posted February 4, 2005 Share Posted February 4, 2005 hmm, afaik the only way to stop time is to use gravity. Link to comment Share on other sites More sharing options...
Macroscopic Posted February 5, 2005 Share Posted February 5, 2005 That seems like a problem, but it's not. It doesn't really have anything to do with gravity. Water would stay in the air because that is where it was when time was frozen. If gravity had an effect on it and brought it down, I think that would mean time wasn't really frozen. Link to comment Share on other sites More sharing options...
ydoaPs Posted February 5, 2005 Share Posted February 5, 2005 true Link to comment Share on other sites More sharing options...
The Nacho Posted February 5, 2005 Author Share Posted February 5, 2005 hmm, afaik the only way to stop time is to use gravity. First of all, does "afaik" mean afraid? Second of all, what the crap do you mean? Use gravity to stop time...? Link to comment Share on other sites More sharing options...
Sayonara Posted February 5, 2005 Share Posted February 5, 2005 afaik = As far as I know. Link to comment Share on other sites More sharing options...
ydoaPs Posted February 5, 2005 Share Posted February 5, 2005 gravity is bent space AND TIME. in fact, time bends more than space. in a black hole, time should have no meaning. Link to comment Share on other sites More sharing options...
Cap'n Refsmmat Posted February 5, 2005 Share Posted February 5, 2005 If time is stopped, the objects can't move. Time is not moving, so nothing happens in that point in time. Link to comment Share on other sites More sharing options...
[Tycho?] Posted February 5, 2005 Share Posted February 5, 2005 You wouldn't be able to tell. If time stopped everything would be frozen, nothing would fall, so gravity ceases to have meaning. Link to comment Share on other sites More sharing options...
noz92 Posted February 5, 2005 Share Posted February 5, 2005 If you could stop time the way it is done in the movies, where time stops for everything else, but you're still able to move: if you jump in the air, would you fall back down to the ground, or would you be weightless. I don't know if you would even be able to move like the above at all. If time is stopped, wouldn't everything be at absolute zero? Link to comment Share on other sites More sharing options...
The Nacho Posted February 5, 2005 Author Share Posted February 5, 2005 '']You wouldn't be able to tell. If time stopped everything would be frozen, nothing would fall, so gravity ceases to have meaning. I know that, I just want to know if you think that the gravity would still be there, even if it wasn't affecting anything. Link to comment Share on other sites More sharing options...
Macroscopic Posted February 6, 2005 Share Posted February 6, 2005 If time is stopped, wouldn't everything be at absolute zero? No. If time stops, nothing changes. It wouldn't be absolute zero because that's not what it was when time stopped. Link to comment Share on other sites More sharing options...
The Nacho Posted February 6, 2005 Author Share Posted February 6, 2005 Exactly! Link to comment Share on other sites More sharing options...
syntax252 Posted February 6, 2005 Share Posted February 6, 2005 If gravity can stop time, is it proportional? If you lived on the moon, would time pass faster than here on Earth? Link to comment Share on other sites More sharing options...
swansont Posted February 6, 2005 Share Posted February 6, 2005 If gravity can stop time, is it proportional? If you lived on the moon, would time pass faster than here on Earth? Yes. The gravitational redshift is linear in g. Link to comment Share on other sites More sharing options...
swansont Posted February 6, 2005 Share Posted February 6, 2005 Yes. The gravitational redshift is linear in g. (to first order, at least) OK, I hit reply instead of edit. Oh well. Link to comment Share on other sites More sharing options...
calbiterol Posted February 6, 2005 Share Posted February 6, 2005 If you lived on the moon, would time pass faster than here on Earth? Even if it did, the more important question is, would you know that it was faster? Conscience is a weird thing... If there was less time in 24 hours on the moon than here on Earth, would you be sped along with it? Not that I even pretend to know anything about relativity or gravity's effects on time. Just an interesting question. Link to comment Share on other sites More sharing options...
syntax252 Posted February 6, 2005 Share Posted February 6, 2005 Yes. The gravitational redshift is linear in g. So, if time passed slower on Earth, we would live longer than if we were transplanted to a planet that has lower gravity? Link to comment Share on other sites More sharing options...
Macroscopic Posted February 6, 2005 Share Posted February 6, 2005 So, if time passed slower on Earth, we would live longer than if we were transplanted to a planet that has lower gravity? I think it depends on your perspective, if you are on Earth and observe the person on the other planet, they wouldn't appear to live as long, but if you were that person I don't think it would make a difference. Link to comment Share on other sites More sharing options...
syntax252 Posted February 6, 2005 Share Posted February 6, 2005 I think it depends on your perspective, if you are on Earth and observe the person on the other planet, they wouldn't appear to live as long, but if you were that person I don't think it would make a difference. Well how would that work? If I had a twin and he lived on Mars, he would appear to not live as long as I, so when he died, I would still be alive, but he would not notice that he was dead? Link to comment Share on other sites More sharing options...
Macroscopic Posted February 6, 2005 Share Posted February 6, 2005 Well how would that work? Relativity. If I had a twin and he lived on Mars, he would appear to not live as long as I, so when he died, I would still be alive, but he would not notice that he was dead? He would only appear to be dead to you because time is moving faster for you. I'm not sure, but I think they would be living in your past, since time is moving slower for them. To your brother, and anyone else on Mars with him, he wouldn't be dead yet. You would be in his future, so it wouldn't be that he didn't notice that he was dead, but that he wasn't dead yet. Time is relative. Link to comment Share on other sites More sharing options...
syntax252 Posted February 6, 2005 Share Posted February 6, 2005 Relativity. He would only appear to be dead to you because time is moving faster for you. I'm not sure' date=' but I think they would be living in your past, since time is moving slower for them. To your brother, and anyone else on Mars with him, he wouldn't be dead yet. You would be in his future, so it wouldn't be that he didn't notice that he was dead, but that he wasn't dead yet. Time is relative.[/quote'] OK, so if we left a clock on the moon and went back in a year or two, it would show a different time that another clock left on the Earth? Link to comment Share on other sites More sharing options...
Macroscopic Posted February 6, 2005 Share Posted February 6, 2005 OK, so if we left a clock on the moon and went back in a year or two, it would show a different time that another clock left on the Earth? If gravity affects time that's right. Link to comment Share on other sites More sharing options...
syntax252 Posted February 7, 2005 Share Posted February 7, 2005 If gravity affects time that's right. Well I don't recall reading anything about any such experiments in the papers. Link to comment Share on other sites More sharing options...
swansont Posted February 7, 2005 Share Posted February 7, 2005 Well I don't recall reading anything about any such experiments in the papers. Happens all the time, though, if you use GPS. Link to comment Share on other sites More sharing options...
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